how to stop the install the sqlite3 adapter: `gem install activerecord-sqlite3-adapter` on the server

I'm deploying a app on production mode but when i try to finish the process the aways show this need for sqlite adapter, please someone know how to stop this issue?

i've been using RAILS_ENV=production but in this case did not worked.

current$ rails generate admin_interface:setup RAILS_ENV=production
DEPRECATION WARNING: Support for Rails < 4.1.0 will be dropped. (called from warn at /home/ubuntu/.rbenv/versions/2.2.2/lib/ruby/2.2.0/forwardable.rb:183)
/home/ubuntu/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/bundler-1.12.5/lib/bundler/rubygems_integration.rb:322:in `block in replace_gem': Please install the sqlite3 adapter: `gem install activerecord-sqlite3-adapter` (sqlite3 is not part of the bundle. Add it to Gemfile.) (LoadError)
from /home/ubuntu/vitrineonline/releases/10/vendor/bundle/ruby/2.2.0/gems/activerecord-3.2.22/lib/active_record/connection_adapters/sqlite3_adapter.rb:3:in `<top (required)>'
from /home/ubuntu/vitrineonline/releases/10/vendor/bundle/ruby/2.2.0/gems/backports-3.6.8/lib/backports/std_lib.rb:9:in `require'
from /home/ubuntu/vitrineonline/releases/10/vendor/bundle/ruby/2.2.0/gems/backports-3.6.8/lib/backports/std_lib.rb:9:in `require_with_backports'
from /home/ubuntu/vitrineonline/releases/10/vendor/bundle/ruby/2.2.0/gems/activesupport-3.2.22/lib/active_support/dependencies.rb:251:in `block in require'
from /home/ubuntu/vitrineonline/releases/10/vendor/bundle/ruby/2.2.0/gems/activesupport-3.2.22/lib/active_support/dependencies.rb:236:in `load_dependency'
from /home/ubuntu/vitrineonline/releases/10/vendor/bundle/ruby/2.2.0/gems/activesupport-3.2.22/lib/active_support/dependencies.rb:251:in `require'
from /home/ubuntu/vitrineonline/releases/10/vendor/bundle/ruby/2.2.0/gems/activerecord-3.2.22/lib/active_record/connection_adapters/abstract/connection_specification.rb:50:in `resolve_hash_connection'

The first issue I see is that you should put the RAILS_ENV declaration at the beginning of your command as this sets that variable for the life of the command.

RAILS_ENV=production bundle exec rails generate admin_interface:setup

This could be the root cause entirely. (Also note the use of bundle exec to be sure that the gemset specified in the Gemfile is properly loaded)

If you want to set it for the shell, run:

export RAILS_ENV=production

So you don't have to manually set it for every command.

The second possibility is that the database adapter is not properly configured. If this is a Ruby on Rails app, the database adapter is defined in config/database.yml. If not specified, it may be defaulting to sqlite3. Make sure you have a properly setup database.yml file.